camelcase api.versionsFrom and api.addFiles
camelcase api.versionsFrom and api.addFiles

Leave around api.add_files so as to not break literally every
package. Leave our own uses of it alone until after merging to devel, so
that merging package.js files isn't a nightmare.

Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor,Hansoft/meteor